不同生态棉区棉纤维晶区取向参数的变化及与纤维比强度的关系  

Variation of Cotton Fiber Orientational Parameters and Its Relation to Fiber Strength at Different Eco-regions

作　　者：赵瑞海[1] 勾玲[1] 韩春丽[1] 张旺锋[1] 雷军[1] 边栋材[2] 

机构地区：[1]新疆生产建设兵团绿洲生态农业重点实验室,石河子832003 [2]天津工业大学材料化工学院材料化学系,天津300160

出　　处：《棉花学报》2008年第1期14-18,共5页Cotton Science

基　　金：国家自然科学基金项目(39960037);教育部优秀青年教师资助计划项目资助(2069);石河子大学高层次人才科研启动资金项目(RCZX200514)

摘　　要：采用不同生态棉区选育的棉花品种,在新疆库尔勒、石河子和河北南宫市3地进行"异地分期种植比较",研究了棉纤维的晶区取向参数的变化及其与纤维比强度的关系,结果表明:随纬度升高,由中熟棉区向北疆早熟棉区推移过程中,晶区取向参数升高,纤维比强度降低。随播期的推迟,相同果枝部位棉铃开花期随之推迟,晶区取向参数随之逐渐变大(宽化),纤维比强度降低。新疆品种到内地种植后,晶区取向参数略有升高,纤维比强度降低;内地品种到新疆种植后,晶区取向参数略有升高,其纤维比强度降低,但新疆与河北产棉区间纤维比强度的差异不大。在本研究条件下,比强度与晶区取向参数均达到显著负相关,纤维晶区取向参数的优化(变小)有利于纤维比强度的提高,纤维晶区取向参数的变化是不同生态棉区纤维比强度改变的原因之一。This article explored the variation of cotton fiber orientational parameters and its relation to fiber strength with the method of planting cotton by stages at the sites from the Yellow River Valley to north Xinjiang. The results showed that with the latitude increasing, fiber orientational parameters increased, while fiber strength decreased. With postponing sowing date, fiber orientational parameters increased and tended to largening（widening）, while fiber strength decreased. There were same results after cotton cultivar breeded at north Xinjiang was planted in Nangong, Hebei Province, and cotton cultivar breeded at the Yellow River Valley was planted in Xinjiang. There was negative correlation between orientational parameters and fiber strength. The minishing（optimizing） of cotton fiber orientational parameters vailed enhancing fiber strength and the variation of orientational parameters is one of the reasons that changed fiber strength.

关 键 词：棉花 晶区取向参数 纤维比强度 播期 生态棉区 

分 类 号：S562[农业科学—作物学]